Home / 2,279.80-3,414.93-1,108.12

Finding the Fourth Proportional to 2,279.80, 3,414.93 and 1,108.12

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Solution

The fourth proportional to 2,279.80, 3,414.93 and 1,108.12 is: 1,659.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,279.80 : 3,414.93 = 1,108.12 : x
  2. Step 2: Convert to fraction form
    2,279.80/3,414.93 = 1,108.12/x
  3. Step 3: Cross multiply
    2,279.80x = 3,414.93 × 1,108.12
  4. Step 4: Simplify right side
    2,279.80x = 3,784,152.23
  5. Step 5: Solve for x
    x = 3,784,152.23/2,279.80
  6. Step 6: Final answer
    x = 1,659.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.